Gail, Marzieh. Baháʼu'lláh's Epistle to the Son of the Wolf. National Spiritual Assembly of the Baha'is of the United States. World Order. Wilmette, IL: 33–39. May 1946 [18 October 2015]. (原始内容存档于2012-01-05).|volume=被忽略 (帮助); |number=被忽略 (帮助)
Gail, Marzieh. Baháʼu'lláh's Epistle to the Son of the Wolf. National Spiritual Assembly of the Baha'is of the United States. World Order. Wilmette, IL: 33–39. May 1946 [18 October 2015]. (原始内容存档于2012-01-05).|volume=被忽略 (帮助); |number=被忽略 (帮助)